A strong earthquake has shaken China's Tibet region but there's no immediate word on damage or casualties.A magnitude 6.3 earthquake hit at a depth of about 6 miles about 36 miles northeast of Nyingchi, near the border with India, the U.S. Geological Survey reports.The official Xinhua News Agency put the magnitude at 6.9 and says it struck at 6:34 a.m. Beijing time.The quake's epicenter was located about 36 miles northeast of Nyingchi, near the border with India, according to the U.S. Geological Survey.

A strong earthquake has shaken China's Tibet region but there's no immediate word on damage or casualties.